Commit 716fa52f authored by Vitaly Kuznetsov's avatar Vitaly Kuznetsov Committed by Greg Kroah-Hartman
Browse files

hyper-v: trace vmbus_on_message() 



Add tracepoint to vmbus_on_message() which is called when we start
processing a blocking from work context.

Signed-off-by: default avatarVitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: default avatarK. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c9fe0f8f

drivers/hv/channel_mgmt.c

+2 −0
Original line number Diff line number Diff line
@@ -1176,6 +1176,8 @@ void vmbus_onmessage(void *context) 
	hdr = (struct vmbus_channel_message_header *)msg->u.payload;

	size = msg->header.payload_size;



	trace_vmbus_on_message(hdr);



	if (hdr->msgtype >= CHANNELMSG_COUNT) {

		pr_err("Received invalid channel message type %d size %d\n",

			   hdr->msgtype, size);

drivers/hv/hv_trace.h

+5 −0
Original line number Diff line number Diff line
@@ -19,6 +19,11 @@ DEFINE_EVENT(vmbus_hdr_msg, vmbus_on_msg_dpc, 
	TP_ARGS(hdr)

);



DEFINE_EVENT(vmbus_hdr_msg, vmbus_on_message,

	TP_PROTO(const struct vmbus_channel_message_header *hdr),

	TP_ARGS(hdr)

);



#undef TRACE_INCLUDE_PATH

#define TRACE_INCLUDE_PATH .

#undef TRACE_INCLUDE_FILE

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